Introduce struct MediaConfig, with construction-time settings.

talk/app/webrtc/fakemediacontroller.h

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 28 matching lines @@
                                webrtc::Call* call)
       : channel_manager_(channel_manager), call_(call) {
     RTC_DCHECK(nullptr != channel_manager_);
     RTC_DCHECK(nullptr != call_);
   }
   ~FakeMediaController() override {}
   webrtc::Call* call_w() override { return call_; }
   cricket::ChannelManager* channel_manager() const override {
     return channel_manager_;
   }
+  const webrtc::MediaConfig* config() const override {

[pthatcher1, 2016/02/05 17:11:30]

I'd say make it a reference.

+    static const webrtc::MediaConfig media_config = webrtc::MediaConfig();
+    return &media_config;
+  }
 
  private:
   cricket::ChannelManager* channel_manager_;
   webrtc::Call* call_;
 };
 }  // namespace cricket
 #endif  // TALK_APP_WEBRTC_FAKEMEDIACONTROLLER_H_